I had a similar noise a while back, drove me nuts until I found that I had the park brake adjusted a bit too tight, apparently it was dragging a little bit and would expand causing the noise (it sounded a lot like a chipped gear). Loosened them up a bit and the noise went away. I suspect that the dragging brake was not the source of the noise, but with the bit of drag, and maybe the park brake drum is not exactly true, when coasting without a load on the driveline, the noise was coming from the trans or diff as the load on the driveshaft changed. I was happy with that (I had visions of a trans rebuild) Hope this is the same in your case.

You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot delete your posts in this forumYou cannot edit your posts in this forumYou cannot create polls in this forumYou cannot vote in polls in this forum